Q. Immunodeficiency makes a person highly susceptible to infection. It is caused by
A) Lack of B-cells
B) Lack of T-cells
C) Both (a) and (b)
D) None of the above
Explanation
The B-cells and T-cells are produced in bone marrow. The T-cells (T-helper cells) stimulate B-cells to produce antibodies. Antibodies are the main component of immune system. Immunodeficiency is characterized by a very low number of circulating lymphocytes (B and T-cells) and the affected persons usually die at an early stage.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.